<h2>Comments</h2>
<pre><code>% This is a comment
/* This is a
multi-line comment */</code></pre>

<h2>Numbers</h2>
<pre><code>42
3.1415</code></pre>

<h2>Strings</h2>
<pre><code>"This is a string."
"This is a string \
on multiple lines."
"A string with \"quotes\" in it."
"Another string with ""quotes"" in it."</code></pre>

<h2>Example</h2>
<pre><code>:- dynamic fibo/2.
fibo(0, 1). fibo(1, 1).
fibo(N, F) :-
N >= 2, N1 is N - 1, N2 is N - 2,
fibo(N1, F1), fibo(N2, F2), F is F1 + F2,
assert(fibo(N,F):-!). % assert as first clause</code></pre>

<h2>Known failures</h2>
<p>There are certain edge cases where Prism will fail.
	There are always such cases in every regex-based syntax highlighter.
	However, Prism dares to be open and honest about them.
	If a failure is listed here, it doesn’t mean it will never be fixed. This is more of a “known bugs” list, just with a certain type of bug.
</p>

<h3>Null-ary predicates are not highlighted</h3>
<pre><code>halt.
trace.

:- if(test1).
section_1.
:- elif(test2).
section_2.
:- elif(test3).
section_3.
:- else.
section_else.
:- endif.</code></pre>
